| Types | DnaRegion
|
| Roles | promoter
Regulatory
|
| Sequences | BBa_I746104_sequence (Version 1)
|
Description
The agr P2 operon is an autocatalytic sensory transduction system in Staphylococcus aureus. P2 promoter regulates the synthesis of AgrB (a transmembrane protein) and AgrD (precursor of AIP autoinducing peptide). AIP binds to AgrC, a membrane binding receptor and it phosphorylates AgrA. The phosphorylated AgrA increases the expression level from P2 promoter.
Notes
Codon usage has been optimised for E. coli (which also seems to give good results for B. subtilis
Source
The section of the sequence constituting the P2 promoter is subject to rather more debate than the sequences of the coding regions.
Koenig, Robbin L., Ray, Jessica L., Maleki, Soheila J., Smeltzer, Mark S., Hurlburt, Barry K. Staphylococcus aureus AgrA Binding to the RNAIII-agr Regulatory Region J. Bacteriol. 2004 186: 7549-7555 shows the areas of the sequence to which phosphorylated AgrA binds while L Rao, R K Karls, and M J Betley: In vitro transcription of pathogenesis-related genes by purified RNA polymerase from Staphylococcus aureus. Bacteriol. 1995 May; 177(10): 2609???2614. shows the transcription start sites; we took the overall extent of the promoter region from that labelled in Morfeldt, E., K. Tegmark, and S. Arvidson. 1996. Transcriptional control of the agr-dependent virulence gene regulator, RNAIII, in Staphylococcus aureus. Mol. Microbiol. 21:1227???1237. (not available online).
